am 149fc59e: am 1f42a6cc: am c57ad1ed: am 55d1ea47: Merge "DO NOT MERGE - AudioFlinger: Clear record buffers when starting RecordThread" into lmp-dev

* commit '149fc59ee66ee84c02e3c705e6264213ab4401a7':
  DO NOT MERGE - AudioFlinger: Clear record buffers when starting RecordThread